Stainless Steel 347 is a Chromium-Nickel steel that is similar to Type 321 with higher creep strength. It shows great resistance to prolonged heat making it a good choice for applications such as engine or power generation parts. Stainless Steel 347 is also useful for applications requiring omission of the annealing process post-welding.
Applications:
- Airplane exhaust stacks
- Welded tank cars for chemicals
- 347 Stainless Steel Angle Bars
- Collector rings
- Expansion joints
- Oil Refineries
- Fluid catalytic cracking units (FCC)
- Stainless Steel Pipes
- Recuperator stainless steel pipe fittings
- Especially where temperatures exceed 550°F and resistance to sulfidation is needed
- Fired heater stainless steel tubes
- Distributor trays and thermowells
- Equipment in and around reactors (good resistance to polythionic acid)
- Stainless Steel Flanges
- 347 Stainless Steel Round Bars
347 Stainless Steel Round Bars Properties
| GRADE | SHAPE | SIZE RANGE | TENSILE KSI | YIELD KSI | ELONGATION % | RED. OF AREA % | BRINELL HARDNESS | RELATIVE MACHINABILITY* | SPECIFICATION |
| Stainless Steel 347 | Round Bars | 1/8" - 5-1/2" | 90 | 30 | 50 | 65 | 170 | 45% | AMS 5646 / ASTM A-276/ A-182/ A-479/ A-193 |
347 Stainless Steel Angle Bars Properties
| GRADE | SHAPE | SIZE RANGE | SPECIFICATION |
| Stainless Steel 347 | Angle Bars | 1/8" - 5-1/2" | AMS 5512 |
